can and could

Front

What does 'can' mean?

Back

It is used to express ability or possibility in the present.

Front

What does 'could' mean?

Back

It is used to express ability or possibility in the past.

Front

What does 'can't' mean?

Back

It is a contraction of 'cannot', used to express inability or impossibility.

Front

What does 'couldn't' mean?

Back

It is a contraction of 'could not', used to express inability or impossibility in the past.

Front

Use 'can' in a sentence.

Back

I can swim.

Front

Use 'could' in a sentence.

Back

When I was younger, I could run fast.

Front

Use 'can't' in a sentence.

Back

I can't go to the party because I am sick.

Front

Use 'couldn't' in a sentence.

Back

I couldn't find my book yesterday.

Front

What is the difference between 'can' and 'could'?

Back

'Can' is for present ability, while 'could' is for past ability.

Front

When do we use 'can' in questions?

Back

We use 'can' to ask about ability or permission, e.g., 'Can you help me?'.